
The AirTAC Airtac MTF Mini Cylinder MTF25X20CM is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 20mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
Delivering a net pull force of 153.6 N at 0.5 MPa, this JIS-standard round-body mini cylinder uses a spring to hold the rod extended and compressed air to retract it. The MTF25X20CM features a 25 mm bore, a 10 mm rod, and a 1/8 inch port. Because air only pulls the rod inward, the unit fails safely to the extended position during air loss, making it ideal for spring-open and air-close operations.
Built with a SUS304 stainless steel barrel and riveted aluminium covers, the compact body is shorter than a comparable ISO 6432 unit, saving valuable mounting length while resisting mild corrosion and washdown environments. This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors without upgrading to an -S variant. It relies on fixed TPU bumper pads for end-of-stroke deceleration and includes a CM round-end rear cover for direct mounting.
| Model | Airtac MTF Mini Cylinder MTF25X20CM |
|---|---|
| Series | MTF JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 150 mm |
Specifications follow the official AirTAC MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). Thread options: PT (blank) / G / NPT.
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 153.6 N |
| 0.7 MPa | 236.0 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
| MTF | JIS-standard round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Uses the 153.6 N pull force to maintain constant belt or web tension, automatically snapping back to the extended rest position if air pressure drops.
Drives a valve to the closed state via air retraction, with the internal spring pushing the rod out to open the valve during an air loss event.
Pulls a 20 mm stroke packaging clamp inward to release a carton, using the spring to push the clamp back out and clear the workspace at rest.
When sizing this 25 mm bore model, evaluate the force margin against adjacent bores: the MTF20 provides 93.4 N at 0.5 MPa, while the MTF32 offers 266.8 N. The 153.6 N output here yields a safe working load of roughly 92 N, or an effective vertical lift capacity of about 7.8 kg when applying a 2:1 safety margin. Choose this single-acting pull configuration for tensioning or return-to-extended fail-safe tasks, ensuring your system can supply at least the 0.2 MPa floor required to overcome the spring.
Mounting flexibility is extensive despite the fixed CM back cover, supporting LB foot, FA flange, SDB pivot-block, and TC trunnion brackets. Remember that this non-magnet version cannot host position sensors; if your cycle requires confirmation, select the -S magnet option to enable CMSG, DMSG, or EMSG switches.
Quick checklist
This single-acting pull cylinder provides a net pull force of 153.6 N at 0.5 MPa and 236 N at 0.7 MPa. It requires a minimum operating pressure of 0.2 MPa to overcome the internal spring, with a maximum pressure of 1.0 MPa and a proof pressure of 1.5 MPa.
No, this specific SKU does not include a magnet and cannot accept CMSG, DMSG, or EMSG sensors. You must select the -S variant for position sensing. Additionally, the spring drives the rod to the extended position on air loss and will not hold a mid-stroke load.
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